Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS4896389 A
Publication typeGrant
Application numberUS 07/204,732
Publication dateJan 30, 1990
Filing dateJun 10, 1988
Priority dateJun 10, 1988
Fee statusPaid
Also published asCA1328314C, DE68902510D1, DE68902510T2, EP0345973A2, EP0345973A3, EP0345973B1
Publication number07204732, 204732, US 4896389 A, US 4896389A, US-A-4896389, US4896389 A, US4896389A
InventorsPaul Chamberland
Original AssigneeS.S.I. Medical Services Of Canada Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Inflatable air mattress
US 4896389 A
Abstract
Disclosed is a one-piece inflated air mattress that can be used as such or laid over a hospital bed mattress. Its body is formed of a series of transverse parallel pillow-like air tunnels connected at their ends with a pair of lengthwise distribution channels. The body has an inlet end, to which an air pressure source is connected, and a terminal end; the distribution channels running between the two ends and tapering from one end to the other, being wider at the inlet end than at the terminal end. An open-ended plenum conduit, located at the inlet end of the body, communicates at its ends respectively with said distribution channels.
Images(3)
Previous page
Next page
Claims(8)
I claim:
1. An inflatable air mattress formed from a one piece elongated body having an air inlet end and a terminal end comprising:
a substantially planar lower portion having a longitudinal air distribution channel along each longitudinal side;
an upper portion comprising a plurality of straight elongated pillow-like air tunnels;
said air tunnels disposed transverse of said body adjacent to and parallel with each other;
said air tunnels being sealed from said lower portion along substantially all their length;
each of said air tunnels having an opening at each end thereof to be in fluid communication with said distribution channels;
each of said air tunnels being integrally formed with a small air pocket at each end, each said pocket extending over and covering the adjacent distribution channel, thereby to increase the width of the mattress;
an open transverse plenum conduit at an inlet end of said body, said conduit opening into said distribution channels, where by said channels, said air tunnels and said plenum conduit communicates with each other; and
air pressure source means operatively connected to said transverse plenum conduit for supplying said conduit, said channels and said tunnels with pressurized inflation air.
2. The inflatable mattress according to claim 1, wherein said air tunnels each have outer walls transverse of the body, so that adjacent air tunnels have separate outer walls.
3. The inflatable mattress according to claim 2, wherein the distribution channels taper from said inlet end to said terminal end.
4. An air mattress as claimed in claim 1, wherein said air pressure source means comprise:
a pressure-adjustable compressor assembly, and
an air inlet conduit having one end connected to said compressor assembly and another end connected to said plenum conduit; said air-inlet conduit being devoid of air-flow control devices.
5. An air mattress as claimed in claim 4, wherein said air tunnels are of equal size.
6. An air mattress as claimed in claim 5, wherein each air tunnel has, over the major portion thereof, an inverted U-shape, in cross-section, with pair of straight legs, a dome-shaped bight at the top and a flat bottom.
7. An air mattress as claimed in claim 6, wherein said dome-shaped bight is perforated with air bleed holes.
8. An air mattress as claimed in claim 1, further comprising contoured end flaps at said inlet end and at said terminal end, said flaps projecting down from said body at said ends and along a portion of the sides of said body for tucking in said body around the ends of a bed mattress.
Description
BACKGROUND OF THE INVENTION

1. Field of the invention

The present invention relates to an inflatable air mattress used to improve the comfort of patients that are immobilized over long periods of time. The mattress of the invention can be used as such or be placed over the mattress of a conventional hospital bed and it is independent from it.

2. Description of the prior art

For this type of patients, it is recommended to provide a mattress which is quite flexible throughout its length to prevent the creation of pressure points on parts of the patient's body that support its weight. These pressure points tend to cause occlusion of blood capillaries on the surface of the skin resulting in the development of body sores or skin rashes. The patent literature is replete with suggestions of mattress constructions intended to prevent this problem. While all of them seem to be based on the use of air inflatable mattresses, a very large number are more specifically adapting the principle of creating a ripple effect on the surface of the mattress, and consequently on the patient's body, to activate blood circulation. However, the known mattresses are quite complex in structure because of the presence of individual air circuits that are separately and alternatively supplied with pressure air and because of the complicated mechanical and electrical control system that is required to operate the mattress properly. These mattresses are consequently extremely costly.

Patents known to the present applicants and addressing this subject are as follows:

______________________________________U. S. Pat. Nos.  945,234 Hinsdale   3,303,518  Ingram3,644,950 Linsay     3,653,083  Lapidus3,674,019 Grant      3,678,520  Evans3,778,851 Howorth    3,822,425  Scales3,879,776 Solen      4,193,149  Welch4,224,706 Young et al                4,225,989  Corbett et al4,297,755 Mollura    4,346,489  McMullan4,394,784 Swenson et al                4,525,885  Hunt et al4,542,547 Sato       4,617,690  Grebe4,638,519 Hess       4,686,722  SwartU. K. Patents1,273,342 Hopkins    1,545,806  Hopkins______________________________________
SUMMARY OF THE INVENTION

An object of the present invention is to provide an inflatable air mattress in which air can be moved throughout its inner cavity without hindrance, in the manner of communicating vases, so that a pressure created by a particular portion of the patient's body is immediately transmitted to the complete air mass, thereby avoiding the creation of pressure spots.

Another object is to provide a mattress having transverse air tunnel-like pillows supplied, at their ends, by lateral air distribution channels of which the cross-section decreases from the air inlet end to the terminal end of the mattress thereby providing uniform air pressure in all pillows regardless of their position with respect to the inlet end.

Still another object of the invention lies in the provision of an inflated mattress which is directly connected to an adjustably controllable air compressor thereby avoiding the use of costly valves and/or cyclic switches or the like.

Yet another object of the invention is that the ends of the pillows or air tunnels extend laterally outwardly of the lateral air distribution channels thereby making the patient's supporting surface wider than usual.

More specifically and basically, the invention is an inflatable air mattress in the form of a one-piece elongated body made of flexible plastic material or air-retentive fabric and comprising, in inflated condition:

a plurality of elongated parallel pillow-like straight air tunnels extending transversely of the body and disposed adjacent one another along essentially the full length of the body;

a pair of air distribution channels located alongside the body and extending over essentially the full length thereof; each air tunnel having open ends and communicating with the distribution channels at its open ends, respectively, in order to be supplied with inflation air from the channels;

wherein the body has an air inlet end and a terminal end away from the inlet end and wherein the distribution channels taper from the inlet end to the terminal end, having a cross-section that is larger at the inlet end that at the terminal end;

an open-ended transverse plenum conduit at the inlet end, the conduit opening into the distribution channels, whereby the channels, the air tunnels and the plenum conduit communicate with one another, and

air pressure source means operatively connected to the transverse plenum conduit to supply the conduit, the channels and the tunnels with pressure air.

Advantageously, each air tunnel may be integrally formed with a small air pocket at each end, said pocket extending over and covering the adjacent distribution channel to increase the width of the mattress.

The above air pressure source means may advantageously comprise:

a pressure-adjustable compressor assembly, and

an air inlet conduit having one end connected to the compressor assembly and another end connected to the plenum chamber; the air-inlet conduit being devoid of air-flow control devices.

As mentioned above, and more specifically expressed, at least a major portion of the air tunnels should extend over and laterally beyond the distribution channels.

Other features and advantages of the invention will be apparent from the description that follows, having reference to the appended drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a mattress incorporating the of the invention;

FIG. 2 is a top plan view of the mattress of FIG. 1;

FIG. 3 is a perspective exploded view of part of the mattress; the upper section being shown in three different steps of its formation;

FIG. 4 is a longitudinal side elevation view, and

FIG. 5 is a cross-section at about midlength of the mattress.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The illustrated inflatable air mattress 1 is in the form of a one-piece elongated body 3 entirely made of flexible plastic material, preferably vinyl or an urethane coated nylon such as DERMOFLEX® of an air-retentative fabric.

The body 3 comprises, in inflated condition, a series of elongated parallel pillow-like straight air tunnels 5 that extend transversely of the body 1 and are disposed adjacent one another along essentially the full length of the body. In properly inflated condition, the tunnels 5 touch one another as best shown in FIG. 4. All obviously are of equal size and of constant cross-section.

Tunnels 5 all communicate with air distribution channels 7 in order to be supplied with inflation air. Channels 7 extend the full length of the body 1, tapering from the air inlet end 9 of the body 3 to its terminal end 11, that is, having a greater cross-section at the inlet end 9 than at its terminal end 11, as seen in FIGS. 2 and 3. With the tunnels 5 opening directly into both channels 7, tapering of the latter ensures constant pressure throughout the mattress body 3 under the communicating vessels principle. Therefore, the above described structure allows all air pillows or tunnels 5 to be inflated at the same pressure regardless of their location with respect to the inlet end 9. Due to the excellent pressure distribution obtained with the tapering channels 7, the pressure output of the air supply unit, in this case the compressor 17, to keep the air tunnels 5 properly inflated to support a patient's body may be as low as 5.5" of water as compared to 8" to 14" in conventional systems.

The air distribution channels 7 are interconnected, at the inlet end 9, by a transverse plenum conduit 15. In this manner, the conduit 15, the channels 7 and the air tunnels 5 all communicate with one another to form a series of closed air circulation circuits.

The plenum conduit 15 is supplied with air under pressure by a pressure-adjustable compressor unit 17 connected to the plenum conduit 15 by a flexible hose 19. With this arrangement, the plenum conduit is in direct communication with the compressor 17 and no valve assembly and/or cyclic switches or the like need be used thereby appreciably reducing the total cost of the mattress assembly, as foresaid.

It will be appreciated that the hose 19 may be connected to the first one of the air tunnels 5 which then replaces the plenum conduit 15. The result would be the same since the first tunnel 5 interconnects the two channels 7.

The same reasoning applies at the terminal end 11 of the mattress where a plenum conduit 21 is provided to join the relevant ends of the channels 7. Again, the last tunnel 5, at the terminal end 11, may be used as the plenum conduit.

As best shown in FIG. 2, because of the tapering or narrowing down of the air distribution channels 7 and to keep the mattress 1 of constant width, the air tunnels may be integrally formed with small air pockets 22 (see FIG. 5) extending over and projecting laterally beyond the channels 7. An exception may be in the first tunnel 5 or so adjacent to the inlet end 9 where the tunnels extend over but not beyond the channels.

Referring now to FIGS. 2 and 3, the mattress body 3 may be made up of preformed top and bottom parts 23 and 25.

The top part 23 is obtained from a plastic sheet blank 27 having a U-shaped slots 29 formed along opposite lateral edges. To obtain a tunnel 5, the sheet 27 is folded up along an axis 30 between two successive slots 29 until the tunnel 5 is obtained, having essentially the shape of an inverted U (see FIG. 4), in cross-section, with a pair of straight spaced legs 31 and a dome-shaped bight 33. With all the tunnels 5 thus shaped, the opposed longitudinal edges of the blank 27 are then first bent down and then outwardly to form weld flanges 35. Next, the so far shaped top part 23 is applied over the lower part 25 with the lower edges of the spaced legs 31 sitting squarely over the central portion 36 (between the air distribution channels 7) and welded thereto along weld lines 37, all of equal length across the mattress body 3. The central portion 36 then serves as flat bottoms for the tunnels 5. The unconnected edges of the ends of the tunnels 5 are then brought together, as shown by the horizontal arrows in FIG. 3, and are welded to close the tunnels 5 which then communicate with the channels 7 and the plenum conduits 15 and 21. The two sheet parts 25, 27, are finally welded along their weld flanges 35, 35'.

As mentioned above, the weld lines 37 across the central portion 36 of the bottom part 25 are all of equal length. Referring to FIG. 2, in order then for the channels 7 to taper from the inlet end 15 to the terminal end 11, it is necessary that the lateral edges of the top and bottom parts 23, 25, more precisely the weld flanges 35, 35', taper in between the ends 9 and 11, as shown.

In order to avoid contamination of the mattress by the patient, an air permeable and water imprevious sheet 37' (FIG. 2) is applied over the mattress 1. The lower surface of sheet 37 consists of an air permeable hydrophobic urethane coating. The upper surface is made of a permeable woven textile material. Air necessary to reduce or prevent maceration comes from a plurality of bleed holes 39 (FIG. 1) through the dome-shaped bights 33 of the tunnels 5.

Finally, and as illustrated in FIGS. 4 and 5, contoured end flaps 41, 43, are provided at the inlet end 9 and at the terminal end 11. They project down from the mattress bottom part 25 and extend across the ends 9, 11, as well as along a portion of the body 3 so as to tuck in the body 3 around the ends of a hospital bed mattress to firmly hold it in position thereon.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US945234 *Dec 12, 1908Jan 4, 1910Hinsdale Pneumatic Cushion And Mattress CompanyPneumatic mattress.
US1830570 *Aug 18, 1930Nov 3, 1931Smith William HenryPneumatic upholstery
US2816299 *Jul 12, 1954Dec 17, 1957Holladay Tool ResSurf float
US3056980 *Apr 23, 1958Oct 9, 1962Forrest E HolladayPlastic sheeting articles and manufacture
US3303518 *Sep 8, 1964Feb 14, 1967Ingram GeorgeInflatable mattresses, pillows and cushions
US3644950 *Aug 1, 1969Feb 29, 1972Milton Roy CoPatient support system
US3653083 *May 11, 1970Apr 4, 1972Roy LapidusBed pad
US3672354 *Sep 4, 1970Jun 27, 1972Scovill Manufacturing CoRest-inducing device
US3674019 *Oct 23, 1970Jul 4, 1972Grant Airmass CorpDual layer cellular inflatable pad
US3678520 *Dec 14, 1970Jul 25, 1972Talley Surgical Instr LtdAlternating pressure pads for bed patients
US3778851 *Feb 24, 1972Dec 18, 1973Haworth Air Conditioning LtdMattress
US3822425 *Jul 7, 1972Jul 9, 1974J ScalesInflatable support appliance
US3879776 *Jan 10, 1974Apr 29, 1975Morris SolenVariable tension fluid mattress
US4193149 *Mar 27, 1978Mar 18, 1980Welch Robert J DBeds and mattresses
US4224706 *Oct 16, 1978Sep 30, 1980Dial-A-Firm, Inc.Pneumatic bed
US4225989 *Oct 5, 1978Oct 7, 1980Glynwed Group Services LimitedInflatable supports
US4297755 *Feb 15, 1980Nov 3, 1981Mollura Carlos ANon-planar waterbed
US4346489 *Jun 3, 1980Aug 31, 1982Mcmullan James PFoldable waterbed
US4394784 *Jul 8, 1981Jul 26, 1983Dial-A-Firm International, Inc.Air bed with firmness control
US4525885 *Nov 16, 1984Jul 2, 1985Mediscus Products LimitedSupport appliance for mounting on a standard hospital bed
US4542547 *Dec 14, 1983Sep 24, 1985Hiroshi MuroiPnuematic mat with sensing means
US4617690 *Jan 7, 1985Oct 21, 1986Whittaker CorporationInflatable bed patient mattress
US4638519 *Apr 4, 1985Jan 27, 1987Air Plus, Inc.Fluidized hospital bed
US4644597 *Apr 14, 1985Feb 24, 1987Dynatech, Inc.Air mattress with pressure relief valve
US4686722 *Apr 4, 1984Aug 18, 1987Revalidatie Institut MuiderpoortArticulated bed with cellular air cushion mattress
US4694520 *Jan 15, 1986Sep 22, 1987Ssi Medical Services, Inc.Fluid support system
US4745647 *Dec 30, 1985May 24, 1988Ssi Medical Services, Inc.Patient support structure
AU101633A * Title not available
CA608979A *Nov 22, 1960Orley J EdwardsSelf-inflating articles
FR841704A * Title not available
FR1442492A * Title not available
FR2373996A1 * Title not available
GB1273342A * Title not available
GB1545806A * Title not available
GB2141333A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5267363 *Sep 23, 1991Dec 7, 1993Chaffee Robert BPneumatic support system
US5367726 *Dec 16, 1992Nov 29, 1994Chaffee; Robert B.Pneumatic support system
US5373595 *Mar 12, 1993Dec 20, 1994Irvin Industries Canada Ltd.Air support device
US5483709 *Apr 1, 1994Jan 16, 1996Hill-Rom Company, Inc.Low air loss mattress with rigid internal bladder and lower air pallet
US5513406 *Apr 21, 1994May 7, 1996Hill-Rom Company, Inc.Modular hospital bed and method of patient handling
US5539942 *Dec 17, 1993Jul 30, 1996Melou; YvesContinuous airflow patient support with automatic pressure adjustment
US5560374 *Mar 30, 1995Oct 1, 1996Hill-Rom, Inc.Patient support apparatus and method
US5577279 *Jul 19, 1994Nov 26, 1996Hill-Rom Company, Inc.Hospital bed
US5584085 *Oct 7, 1994Dec 17, 1996Surgical Design CorporationSupport structure with motion
US5594963 *Mar 11, 1996Jan 21, 1997Kinetic Concepts, Inc.Pressure relief air mattress and related system
US5596781 *Oct 20, 1995Jan 28, 1997Crown Therapeutics, Inc.Vacuum/heat formed cushion with pyramidal, inflatable cells
US5598593 *Feb 10, 1995Feb 4, 1997Aqua-Leisure Industries, Inc.Inflatable air bed
US5680661 *Aug 3, 1995Oct 28, 1997Hill-Rom, Inc.Hospital bed with user care apparatus
US5787531 *Jul 23, 1996Aug 4, 1998Pepe; Michael FrancisInflatable pad or mattress
US5794288 *Jun 14, 1996Aug 18, 1998Hill-Rom, Inc.Pressure control assembly for an air mattress
US5802646 *May 24, 1996Sep 8, 1998Hill-Rom, Inc.Mattress structure having a foam mattress core
US5815865 *Nov 30, 1995Oct 6, 1998Sleep Options, Inc.Mattress structure
US5906019 *Oct 31, 1995May 25, 1999Mccarthy; KevinAir mattress with oval beams
US6012186 *Apr 29, 1997Jan 11, 2000Hill-Rom Compnay, Inc.Mattress articulation structure
US6115861 *Apr 22, 1998Sep 12, 2000Patmark Company, Inc.Mattress structure
US6178578Aug 17, 1998Jan 30, 2001Hill-Rom, Inc.Pressure control assembly for an air mattress
US6212718Mar 31, 1999Apr 10, 2001Hill-Rom, IncAir-over-foam mattress
US6374436Sep 5, 2000Apr 23, 2002Hill-Rom Services, Inc.Hospital bed
US6378152Mar 2, 1998Apr 30, 2002Hill-Rom Services, Inc.Mattress structure
US6457192Jul 13, 2001Oct 1, 2002Harrison ChoiAir bed with elevated and self-expanding support structure
US6460209Jan 18, 2000Oct 8, 2002Hill-Rom Services, Inc.Mattress structure
US6665893Apr 5, 2002Dec 23, 2003L & P Property Management CompanySofa sleeper with integral air mattress and valve
US6687935Jul 1, 2002Feb 10, 2004Hill-Rom Services, Inc.Mattress structure
US6694548Feb 28, 2002Feb 24, 2004Hill-Rom Services, Inc.Hospital bed
US6701559Aug 1, 2001Mar 9, 2004Aero Products International, Inc.Increased height inflatable support system
US6725474Jul 16, 2002Apr 27, 2004Hill-Rom Services, Inc.Hospital bed
US6775868 *May 3, 2000Aug 17, 2004Trlby Innovative LlcInflatable mattress systems and method of manufacture thereof
US6839929Jan 10, 2002Jan 11, 2005Hill-Rom Services, Inc.Self-sealing mattress structure
US6855158Sep 11, 2001Feb 15, 2005Hill-Rom Services, Inc.Thermo-regulating patient support structure
US6857142Oct 14, 2003Feb 22, 2005L & P Property Management CompanySofa sleeper with integral air mattress and valve
US6952852Dec 23, 2003Oct 11, 2005Hill-Rom Services, Inc.Mattress structure
US6964134Apr 1, 2002Nov 15, 2005Chaffee Robert BMembrane deflation in combination with rigid surfaces
US6983502Mar 30, 2001Jan 10, 2006Boyd Flotation, Inc.Air mattress with pillow top
US7000276Apr 11, 2003Feb 21, 2006Chaffee Robert BBody support surface comfort device
US7152264Dec 26, 2001Dec 26, 2006Dennis BoydAir mattress with pillow top
US7174589Aug 17, 2004Feb 13, 2007Trlby Innovative LlcInflatable cushion systems and method of manufacture thereof
US7191482Mar 15, 2004Mar 20, 2007Hill Rom Services, Inc.Patient support
US7328472Jul 10, 2002Feb 12, 2008Chaffee Robert BConfigurable inflatable support devices
US7367073Nov 27, 2006May 6, 2008Dennis BoydAir mattress with pillow top
US7380300Nov 4, 2005Jun 3, 2008Dennis BoydAir mattress with pillow top
US7412738Apr 25, 2003Aug 19, 2008Robert ChaffeeFluidic chambers fluidly connected by one way valve and method for use
US7424760Mar 25, 2005Sep 16, 2008Chaffee Robert BBody support, comfort device
US7455744Aug 17, 2004Nov 25, 2008Trlby Innovative LlcInflatable mattress systems and method of manufacture thereof
US7478448Dec 22, 2006Jan 20, 2009Aero Products International, Inc.Inflatable reinforcing chamber
US7480953Mar 20, 2007Jan 27, 2009Hill-Rom Services, Inc.Patient support
US7588425Mar 18, 2005Sep 15, 2009Aero Products International, Inc.Reversible inflation system
US7610642Aug 15, 2007Nov 3, 2009Dennis BoydAir mattress with pillow top
US7617555Jan 26, 2009Nov 17, 2009Hill-Rom Services, Inc.Patient support surface
US7694372Apr 7, 2009Apr 13, 2010Dennis BoydAir mattress
US7849545Nov 14, 2006Dec 14, 2010Hill-Rom Industries SaControl system for hospital bed mattress
US7966680Nov 16, 2009Jun 28, 2011Hill-Rom Services, Inc.Patient support surface
US7975331Oct 23, 2007Jul 12, 2011Hill-Rom Industries SaDevice and method for controlling humidity at the surface of a supporting item of the mattress type
US8051516 *Jul 30, 2009Nov 8, 2011Micropulse, Inc.Clinical support pad
US8108957May 19, 2008Feb 7, 2012Hill-Rom Services, Inc.Pulmonary mattress
US8151391Mar 30, 2009Apr 10, 2012Jacobo FriasInflatable temperature control system
US8196239Oct 31, 2011Jun 12, 2012Micropulse, Inc.Clinical support pad
US8434177Dec 12, 2007May 7, 2013Robert B. ChaffeeConfigurable inflatable support devices
US8584279Sep 23, 2011Nov 19, 2013Hill-Rom Services, Inc.Pulmonary mattress
US8601620May 13, 2011Dec 10, 2013Hill-Rom Services, Inc.Cover system for a patient support surface
US8720120Sep 29, 2005May 13, 2014Robert B. ChaffeeMembrane deflation in combination with rigid surfaces
US8789224Nov 6, 2001Jul 29, 2014Tempur-Pedic Managemant, LLCTherapeutic mattress assembly
USRE38135 *Sep 7, 2000Jun 10, 2003Hill-Rom Services, Inc.Mattress structure having a foam mattress core
EP2140847A2Nov 6, 2001Jan 6, 2010Tempur World, LLCTherapeutic mattress assembly
WO1996037131A1May 21, 1996Nov 28, 1996Dieletrics Ind IncControl panel for an inflatable structure
WO1998048673A1Apr 15, 1998Nov 5, 1998Hill Rom Co IncMattress articulation structure
WO2002038099A2Nov 6, 2001May 16, 2002Tempur World IncTherapeutic mattress assembly
WO2004058007A2Dec 18, 2003Jul 15, 2004Hill Rom Services IncPatient support surface
Classifications
U.S. Classification5/710, 5/713
International ClassificationA61G7/05, A47C27/08
Cooperative ClassificationA61G2007/05784, A61G7/05769
European ClassificationA61G7/057K
Legal Events
DateCodeEventDescription
Oct 15, 2001ASAssignment
Owner name: HILL-ROM SERVICES, INC., INDIANA
Free format text: AMENDMENT TO ASSIGNMENT;ASSIGNOR:PATMARK COMPANY, INC.;REEL/FRAME:012219/0970
Effective date: 20010920
Owner name: HILL-ROM SERVICES, INC. 1069 STATE ROUTE 46 EAST B
Owner name: HILL-ROM SERVICES, INC. 1069 STATE ROUTE 46 EASTBA
Free format text: AMENDMENT TO ASSIGNMENT;ASSIGNOR:PATMARK COMPANY, INC. /AR;REEL/FRAME:012219/0970
Jul 27, 2001FPAYFee payment
Year of fee payment: 12
May 15, 2001ASAssignment
Owner name: HILL-ROM SERVICES, INC., INDIANA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PATMARK COMPANY, INC.;REEL/FRAME:011751/0755
Effective date: 20010215
Owner name: HILL-ROM SERVICES, INC. 1069 STATE ROUTE 46 EAST B
Owner name: HILL-ROM SERVICES, INC. 1069 STATE ROUTE 46 EASTBA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PATMARK COMPANY, INC. /AR;REEL/FRAME:011751/0755
May 13, 1997FPAYFee payment
Year of fee payment: 8
Jul 8, 1993FPAYFee payment
Year of fee payment: 4
Jun 10, 1988ASAssignment
Owner name: S.S.I. MEDICAL SERVICES OF CANADA INC., 8, VICTORI
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHAMBERLAND, PAUL;REEL/FRAME:004894/0289
Effective date: 19880520
Owner name: S.S.I. MEDICAL SERVICES OF CANADA INC., CANADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHAMBERLAND, PAUL;REEL/FRAME:004894/0289